Gas-producer.



No. 852,516. PATENTED MAY 7, 1907.

G. H. MORGAN & A. J. GIFFORD.

GAS PRODUGER'.

APPLICATION FILED 4mm; 3', 1904.

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Inuentors \A/ltnesses Q I I V Q bf E c1. En; ford;

No. 852,516. I PATBNTED MAY 7. 1907.

- 0., H. MORGAN a; A. J. GIFFORD.

GAS PRODUCER.

APPLICATION FILED JUNE-3, 1904.

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UNITED srAr s PATENT OFFICE.

cHA LEsn. Mo1teAN AND ALBERT J. GIFFORD, OFWORCESTER, MASSA- CHUSETTS; smcirronn ASSIGNOR T SAID MORGAN.

GAS-PRO UCE Letters Patent.

Specification of Application med um '3. 1904. serial no. 210,938.

Patented May 7, 1907.

To all whom it may concern; I Be it knownthat we, CHARLES H. MoaoAN andALBERT J. GIFFORD, both citizens'of the United States, residing atWorcester, in the by drawings forming a part of the same, in

' which- Figure 1 represents a vertical central sec tionalview of a gasproducerembodying our 'claims.

invention, the. section being shown online 1-1 Fig.2. Fig. 2 is a lanview of our improved gas producer, an Fig. 3 is a sectional 'viewof onehalf ofthe producer on line 3 3, Fig. 1, and Fig. 4'is a verticalsectional view of a portion of the side wall of the gas producer takenon outlets 25. i

Similar reference letters the plane of one of the gas and figures referOur improved-gas producer belongs to that class of producers known assuction ordown draft producers in which the supply of air for supportingcombustion is receivedat the top oft e gas producer chamber and isconducted downward through the fuel, and our invention consists incertain features of construction and novel arrangement-of parts ashereinafter described, and set forth in theanne'x'ed- Referring to theaccompanying drawings 1 denotes the heating chamber inclosed by' a sidewall2 preferably circular'and constructed of masonry The chamber 1is'covered by alcircular plate 3 provided-at the-center with adownwardly rojectin'gtube 4, forming a twyer, throug which air isadmitted to the'heatin chamber; At the lower end of the tube 4 su port anozzle 5 extending some distance be ow the lower end of the pipe 4 andpreferably covered on its exposed outer v surface bya covering ofasbestos 6 to protect it against heat, The nozzle 5 is readily re-,

' movable from theftube 4through the upper producer, andin thepresentinstance it isfsulpend. of'the tube to enable ittobe 're lacedwhen-injuredby theexcessive heat of t e gas ported. by a 1l2'a,r'1g'e 7on' the upper end-.o 1n0z'zle'5which, sts'upon interior shoulder 8- inthe tube/1. The top plate 3 is also providedwith .o enings 9 closed bycovers 10 to provide fertile admission of fuel and also to 1permit-thefuel to be properly distributed by pokers or otherwise withinthe heating chamber 1.

.The cover 3 is provided with an annular concentric flange 11 extendingupward. from the cover 3 upon which is supported .a supplemental or topcover 12 provided with a concentric o enmg 13 directly over the-tube" 4and close by a removable cover14. In-

closing the side wall 2- is a metal shell 15 and concentric with theshell 15 is a similar metal shell 16 having its lower end connected withthe shell 15 and its upper end riveted to theannular flange 11; 1Between the shells 15 and 16 is an inclosed annular space 17 which isclosed at the bottom and communicates at the top with the air space 18between the I outer sand wall 21 retained by a concentric metal shell22. The several covering'plates 3, 10, 12 and 14 are provided withdepending flanges which are embedded insand in order to sand-seal saidcovers. The side walls of masonry 2 and 19 are supported upon aconcentric base wall 23 provided with interior recesses 24 whichcommunicate with the lowerend of the annular space 20. Y

On diametrically opposite sides of the gas producer are outlet gas pipes25 communicating with the annular space 20 through which gas, as'it isroduced in the chamber 1, is withdrawn, t e movement of the gas beingindicated by the arrows26, 26, Figs. 1 and 4, the withdrawal of the gasbeing effected by suction, either by means of the reciprocating pistonof a gas engine, a suction fan,- or other suitable mechanical device.Communicating with the annular space 17 near its lower end,are pipes 27opening to the outside air,

whereby a current of air is supplied in the direction of the arrows 29through the annular space 17, airspace 18 and downw ardthroug t e nozzle5 into the body of the coal, contained in the gas producer chamber 1.

the. annular space 17, and are connected with provided with sprayingnozzles 31'by which IOO Wa ter pipes 30 are inserted in the upper endof.

' a source of water-supply,-with their free ends a spray of water ismade to impinge against the opposing walls of the space 17 down whichthe water trickles and is collected at the bottom of the annular space17 ,as shown at 32, the water accumulating until it reaches the openpipes 27 which then serve as overflow pipes. As the space 17 is situatednext the inner wall 2 of the gas producer, it receives more or lessradiant heat from the combustion of coal in the gas producer chain:

her 1, and the metal shelf 16 by which the space 1' 7 is separatedfromthe annular space 20 also becomes heated by the upward-flow of heatedgas'through the space 20 to the outlet pipes 25. The heatwhich isthusimpart.-

ed to the annular space 17 vaporizes acon siderable portion-oi: thewater supplied by-the spraying nozzles 31 and the steam thus formedbecoming intimately mixed with the ascending current of air isfedtthrough the, nozzle 5 downward into the body of incaridescent coal.in the. chamber 1. The masonry walls surroundingthe gas producingchamberiare supported upon-metallic legs-33 which rest upon the bottomof a pit 34, which is partially filled with water during the opera:

tion of the producer, and from which'ashes as they are formed are rakedfrom the producer. The inner wall 2 of the gas producer is contractednear the top of the chamber 1 to iorni a restricted throat opposite thenozzle 5,

. whose least diameteris ata point 35 a shortdistance above the lowerend of the nozzle 5. Below the nozzle 5 the. diameter of the gasproducing. chamber radually expands to its normal diameter. y this shapeof theinner walls of the producing chamber, the up per end of thechamber becomes slightly hop per shaped to facilitate the feeding andmassing of the fuel compactly around the nozzle 5, whilethe'enlargementimmediately below the nozzle provides for a freer passage anddistribution of air through the centerof the mass of fuel and tends toprevent adherence of clinkers to the walls of the producer.

'We are aware that suction or down draft gas producers are not new andwe are also' aware that it is not new to heat-the air supply by whichcombustion is; maintained in producers of this class, but so far as weare aware the heatingof the air supply has been accomplished by carryingthe air supply pipe t rough an auxiliary chamber outside of andentirelyindependent of the gas p'ro-' ducer chamber, said auxiliarychamber being heated by the currentofheated' gas as it was withdrawnber. a By our 1m roved construction we conduct from 'the gas producerchamthe air supp y to the gas producer chamber through the annular space17 concentric with the gas producer chamber 1, thereby utilizing theradiant heat from the gas producer chamher and we surround theair-space- 17 with a similar concentric gas space 20, therebylargelyincreasing the heating surface, due to" the increase in the diameter ofthe separat- (thing shell 16 and as several water pipes 30/ areconducted to the space 17 on difier'ent sides of the'gas producer, fourbeing employed in the present instance, the ascending current of airthrough thespace 17 becomes thoroughly impregnated with steam." Theupwardly moving steam charged current of air through the space 17 alsotends to prevent the over-heating of the side walls of the chamber,thereby obviating the sticking of clinkers to the wall while the body ofwater collected at 32 in contact with the lower end of the wall 2 tendsto reduce the temperatureat the bottom of the gas producerchamber, sothat the clinkers passing downward with the body of ashes remainseparated and canreadily be withdrawnfrom the water sealed it 34. I iii" p What we claim as ourinvention and desire tose'cure'by LettersPatent'is:-f

1. In a gas producer, the-combination with a gas producing chamber, of acover for said chamber, a. depending twyer entering the top ofsaidchamber from said cover, an annular air space, surrounding said chamber,means for admitting air to the lower end'of said, air.

space, means for applying heat to the outer wall of said an space, andmeansfor conducting air from the top ofsaid air space to said 2, Ina gasproducer, the combination with a gas producing chamber having a. cover,,of-a twyer depending from said cover and enter ing said chamber, anannular airspace sur-' a gas. pro ucing chamber, of a twyer at the upperend of said chamber, anjannular airspace surrounding said chamber, meansfor admitting air tofthe lower end of said air 3 space, means for.conductingair from said air space to said. twyer, and means for sprayingwater into, said air spaces,

4. In a was producer, thejcombination with a gas producing chamber, ofan annular air space surrounding said; chamber, means for admitting airto the lower end of said air space, means for conducting. air from theupper end of said air space to the gas producingchamber, said air spacehavin'ggparallel s de.

walls,"means i or spraying w'ater'against said sidewalls and a waterorerflow near "thelower end of said air space. N

5. In a gas producer, the combmatlon with a gas producing chamber, or anannular a r space surrounding. said chamber and having vertical sidewalls, means for admitting air tothe lower end of said air space, meansfor conducting a r from the upper end of said air space to the gasproducing chamber,

.means for admitting water to the upper end said annular air space isconducted to said gas producing chamber.

7. In a was producer, the combination ynth a gas producing chamber, ofan annular air space inclosmg said chamber, an annular gas spacelnclosmg said air space, said air and gas spaces having talhc partitionbetween said an and said gas space, meansfor admitting air to said airspace at its lower end, means for conducting air from the upper end ofsaid air spaceto the I gas producing chamber, said annular gas spacecommunicating with said gas producing chamber at the lowerend of thechamber, and an outlet pipe for gas leading from said annular gas space.

8. In a as producer, the combination with a gas proc ucing chamber, of adouble cover vertical side Walls, a me a for said chamber inclosing anair space, an

opening for the admission of air from said space into said producingchamber, an air space inclosed in the side wall and communieating withthe air space in said cover, and an opening into said Wall air space forthe admission of air thereto.

9. In a gas producer, a gas producing chamber having its side wallsvertically parallel at the lower end of said chamber with acontract-edsection near the upper end of the chamber, by which thediameter of the chamber is reduced, and having its side walls graduallyflaring near the upper end of the chamber, a concentric twyer enteringthe upper end ot'the chamber, a double cover for said chamber inclosingan air space communicating with said twyer, an annular air spacesurrounding the vertical wall of the c amber communicating with thespace between said covers, and an opening at the bot tom of said annularair space for the admission of air.

V Subscribed at Worcester in the county of Worcester and Commonwealth ofMassachw setts this twenty seventh day of May 190 CHAS. H. MORGAN.ALBERT J. GIFFORD.

Witnesses:

WILLARD A. WINN, EDWIN 'L. SMITH.

